help with wiring taillight

[mngoat]

I currently have a 3 wire led tail light on my 2012 pro.....it had a cfi4 motor in it so i ran this(see pic) to make it work..... same light but i now have an older ignition system that has only AC (2005 800 xc) Any tips on hooking up the led with the older system, is it possible? Thanks

 

[Red-eye]

Is your brake light activated on the power wire or the ground wire? Put a test light on it. If it is activated by the power wire, you will have to wire the relay so it is activated by the power wire, not by the ground as in the pic.